Antioxidants for Paving Asphalts

Details

• Creators:
  Traxler, R. N.
• Corporate Creators:
  Texas Transportation Institute. Texas A&M University
• Corporate Contributors:
  Texas Highway Department
• Subject/TRT Terms:
  Antioxidants Asphalt Additives Asphalt Cement Asphalt Hardening Durability Oxidation Paving Materials
• Publication/ Report Number:
  15
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas ; United States
• Edition:
  November 1, 1960 to September 1, 1962
• Corporate Publisher:
  Texas Transportation Institute. Texas A&M University
• Abstract:
  The objective of this project was to determine how the durability of paving asphalts can be improved. Sixteen chemical additives from two different manufacturers were evaluated as antioxidants for 85-100 penetration paving asphalts. The following conclusions are drawn from the data given in this report: (1) Chemical compounds are available which serve rather effectively as antioxidants and free radical inhibitors when added to asphalt cements; (2) The retardation of hardening by these chemicals is most effective in asphalts that are highly susceptible to oxidation; (3) One to two weight percent of the additive material appears to be the optimum concentration; and (4) The additives investigated are more effective against oxidation in the absence of light than against the severe hardening caused by photo-oxidation.
• Format:
  PDF
• Funding:
  3
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:1229851dda5c49dd54821233fbeda9ae3ebcc272ddb963f6198531c4d1c1dbe711ec318d469e3134e39f09502bb971401ff13199bd743d4e4a5e49e9f6e28049
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/83616/dot_83616_DS1.pdf
• File Type:
  [PDF - 1.13 MB ]